1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
static char* eth_gpio_pin_name_by_attr_name(const char* name, int port) {
switch (port) {
case port_1:
if (! strcmp(name, "reset")) {
return "ap1-reset";
} else {
log_error("attribute name [%s] is invalid for LORA in port %d", name, port);
return "";
}
case port_2:
if (! strcmp(name, "reset")) {
return "ap2-reset";
} else {
log_error("attribute name [%s] is invalid for LORA in port %d", name, port);
return "";
}
}
}
// 1 vendor-id
// 1 product-id
// 1 device-id
// 1 hw-version
// 1 mac-addr or eui
// 1 reset
// NULL
static size_t ap_eth_attrs_size = 7;
static bool eth_setup(enum ap port) {
int i;
int port_index = port - 1;
int index = 0;
int count = 0;
int ret;
char buf[32];
struct attribute **attrs;
struct kobj_attribute* attr;
log_info("loading ETH accessory card in port %d", port);
sprintf(buf, "ap%d", port);
ap_subdirs[port_index] = kobject_create_and_add(buf, &mts_io_platform_device->dev.kobj);
if (! ap_subdirs[port_index]) {
log_error("kobject_create_and_add for ETH in port %d failed", port);
return false;
}
// create the link to the apX directory this card is in
// if we're in the first slot, we get plain "eth"
// if we're in a different slot, we might need to use "eth-2" to differentiate
if (port > 1) {
for (i = 1; i < port; i++) {
if (port_info[i - 1]) {
if (strstr(port_info[i - 1]->product_id, PRODUCT_ID_MTAC_ETH)) {
count++;
}
}
}
}
if (count > 0) {
sprintf(buf, "eth-%d", count + 1);
} else {
sprintf(buf, "eth");
}
ret = sysfs_create_link(ap_subdirs[port_index]->parent, ap_subdirs[port_index], buf);
if (ret) {
log_error("failed to link [%s] to [%s], %d", buf, ap_subdirs[port_index]->name, ret);
}
attrs = kzalloc(sizeof(struct attribute*) * ap_eth_attrs_size, GFP_KERNEL);
if (! attrs) {
log_error("failed to allocate attribute space for port %d", port);
return false;
}
sprintf(buf, "reset");
attr = create_attribute(buf, MTS_ATTR_MODE_RW);
if (! attr) {
log_error("failed to create attribute [%s] for ETH in port %d", buf, port);
kfree(attrs);
return false;
}
ap_attr_groups[port_index].attrs = attrs;
attr->show = mts_attr_show_ap_gpio_pin;
attr->store = mts_attr_store_ap_gpio_pin;
attrs[index++] = &attr->attr;
// add attributes for eeprom contents
if (! ap_add_product_info_attributes(port, MTAC_ETH_0_0, attrs, &index)) {
log_error("failed to add product info attributes for ETH in port %d", port);
return false;
}
attrs[index] = NULL;
if (sysfs_create_group(ap_subdirs[port_index], &ap_attr_groups[port_index])) {
log_error("sysfs_create_group failed for ETH in port %d", port);
return false;
}
return true;
}
static bool eth_teardown(enum ap port) {
int i;
int port_index = port - 1;
struct attribute **attrs = ap_attr_groups[port_index].attrs;
log_info("unloading ETH accessory card in port %d", port);
// clean up allocated memory for attributes
for (i = 0; i < ap_eth_attrs_size; i++) {
if (attrs[i]) {
if (attrs[i]->name)
kfree(attrs[i]->name);
kfree(attrs[i]);
}
}
kfree(attrs);
// clean up our "apX/" kobject if it exists
if (ap_subdirs[port_index]) {
kobject_put(ap_subdirs[port_index]);
}
return true;
}
bool set_eth_info(struct ap_info* info) {
snprintf(info->product_id, 32, "%s", PRODUCT_ID_MTAC_ETH);
info->setup = ð_setup;
info->teardown = ð_teardown;
info->gpio_pin_name_by_attr_name = ð_gpio_pin_name_by_attr_name;
return true;
}
|
